package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;

public class jdbcdemo8
{

    public static void main(String[] args)
    {
        System.out.println("连接成功");
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入用户名");
        String username=sc.next();
        System.out.println("请输入密码");
        String password=sc.next();
        System.out.println("请输入昵称");
        String nickname=sc.next();
        System.out.println("请输入年龄");
        int age=sc.nextInt();
        try(Connection con=DButil.getConnection())
        {
            String sql="SELECT * FROM USER WHERE USERNAME=? AND PASSWORD=?";
            PreparedStatement ps=con.prepareStatement(sql);
            ps.setString(1, username);
            ps.setString(2, password);
            ResultSet rs=ps.executeQuery();
            if(rs.next())
            {
                System.out.println("登录成功");
            }
            else
            {
                System.out.println("用户不存在");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
